New Plug-in Ecu Coming

[raps86]

1 question i have that im gona send an email away is if i get the v88 and i get it tuned for the neo motor and i put a different motor in like a 26 can i load a 26 map into it later and tune that or i have to get another ecu.

[TiTAN]

it would have to be slightly rewired for the 26, but other than that it doesn't care what its running.

[Scooby]

can anyone confirm that the v44 plugin will run low impedence injectors without using a resistor pack?

I have heard they from different people that they will but have also read you need a resistor pack.

Anyone done this yet?

Vipec V44 plug-in manual:

GTR models are fitted with LOW impedance injectors run via factory fitted ballast resistors. This ECU has been designed to be used with HIGH impedance (greater than 6 Ohms) injectors. Ballast resistors must be wired if low impedance injectors are to be used. This means that the ECU is plug-in compatible with factory fitted injector/ballast combinations on all models.

[CeJay]

Will be interesting when I take my car to get tuned tomorrow, my new injectors are low impedance, but I've been told the car already has a resistor pack in it.

[Scooby]

with the amp or with the figures in the knock map?

with the amp. i'm keen to know how people are setting up the knock response threshold since it's hard to know what knock sounds like for a given engine unless you can produce it. ie no point having the knock function set at a threshold such that the thing is rattling away but the ecu does nothing because the knock severity at which it acts only occurs when the conrod exits the block.

unless of course it's a noise filter like the Turbo XS Knocklight.

would also be nice if they could find a way to use the standard knock sensors on the GTR.

[Scooby]

Will be interesting when I take my car to get tuned tomorrow, my new injectors are low impedance, but I've been told the car already has a resistor pack in it.

Hi Chris

thought you already had yours tuned at ESP?

[TiTAN]

with the amp. i'm keen to know how people are setting up the knock response threshold since it's hard to know what knock sounds like for a given engine unless you can produce it. ie no point having the knock function set at a threshold such that the thing is rattling away but the ecu does nothing because the knock severity at which it acts only occurs when the conrod exits the block.

unless of course it's a noise filter like the Turbo XS Knocklight.

would also be nice if they could find a way to use the standard knock sensors on the GTR.

it uses the standard sensors, the plugin and the V44 need an amp/signal filter so that the input is 0-5v without much random signal noise where as the V88 has that built into the unit.

[SLAPS]

Scooby....

Ear muffs/det cans.

Edited February 8, 2009 by TheRogue

[Scooby]

it uses the standard sensors, the plugin and the V44 need an amp/signal filter so that the input is 0-5v without much random signal noise where as the V88 has that built into the unit.

i see. that's good news, thanks for clarifying

[CeJay]

Hi Chris

thought you already had yours tuned at ESP?

turbo blew, so new turbo and injectors

[Scooby]

Scooby....

Ear muffs/det cans.

i know how you listen for knock, what i'm asking is how you set the knock correction point if you don't know what knock freqs are for a given engine.

if it was standard practice to get the engine to 'just' start knocking and set that as the threshold for the ecu to trigger knock control there would be no question, i just don't intend getting my car tuned that way.

Turbo XS claim that once the procedure of calibrating the Knocklight to the freq range of normal engine noise for a given engine - ie without knock - is complete, it recognises freqs outside that as knock. they are confident that the unit will pick it up correctly because knock freqs are fairly unique. in other words it detects freqs outside those parameters as knock, although the suggestion is that knock freq range is extremely narrow. i'm not advocating their approach but i can see it's plausible as they use the parameters of an particular engine's unique freqs.

another example; the stock GTR ecu has knock control but if you use it on an RB26/30, which will have a different knock freq to a stock RB26, there is no guarantee it will be effective as what it hears when a 26/30 knocks itself to death might be different to what it has been calibrated to recognise as knock.

hope that makes sense.

just not sure how it's done with the Vipec.

Edited February 8, 2009 by Scooby

[dano4127]

With the vipec can you select high or low impedance injectors?

Also just wondering considering the current group buy on the Haltech E11V2 @ $1545

Why would you choose the Vi-pec over the Haltech?

[TiTAN]

take a look at the features lists. if you want to use low impedance injectors you will need a resistor pack from a gtr.

[dano4127]

take a look at the features lists. if you want to use low impedance injectors you will need a resistor pack from a gtr.

damn that sucks

[CeJay]

Those who have the v44 whats your idle like? Now I have the injectors and hks turbo on, the idle seems to hunt a lot, where before it was almost flat as a tack? Is it worth doing some data logging?

[Swiper the Fox]

Those who have the v44 whats your idle like? Now I have the injectors and hks turbo on, the idle seems to hunt a lot, where before it was almost flat as a tack? Is it worth doing some data logging?

your engine didnt eat turbo bits did it?...probably only a simple air leak though...are the injectors sealed where they seat on the head flange?

[CeJay]

your engine didnt eat turbo bits did it?...probably only a simple air leak though...are the injectors sealed where they seat on the head flange?

My engine may of eaten some small turbo bits, compression test came back regular no cylinder vastly different to the other., some small metal flakes were found around the intake and around the IM. Intercooler piping etc was all cleaned out. What do you mean by are the injectors sealed?

Wasn't doing this for the few mins I had the car idling after the turbo blew.That was with the old injectors

thx

[Swiper the Fox]

My engine may of eaten some small turbo bits, compression test came back regular, some small metal flakes were found around the intake and around the IM. Intercooler piping etc was all cleaned out. What do you mean by are the injectors sealed?

thx

they have small rubber insulators that seal the injectors to the head...its quite common to not seat them correctly allowing a small amount of air to enter the system which is making the idle hunt.

[TiTAN]

is it closed loop idle or open loop? it may just need a little adjustment.

[CeJay]

Frankly I wouldn't know, I have the software to monitor the ecu, but I havent had the chance to use it.

edit: I'll have a look tomorrow to see what I can around the injectors, thx for the tip.

Will see if I can do some datalogging of the ecu on friday as well.

thx